Answer:
From the choices 6, 18, 24, 28. It’s 18
Explanation:
The sum of any 2 sides of the triangle should be greater than the third side.
8+15= 23
That excludes choices 24 and 28.
Supposing it’s 6, try the same rule again
6 + 8 = 14 it isn’t greater than 15
Which means the answer is 18
Hope this helps